BD, this is just one thing that we'll have to agree to disagree on. To me wearing cammies in public is wrong. We are allowed to wear Charlies, Alphas, and Deltas however. Our camouflage utilities are a field uniform (I call it work because the field was my job). To us a Marine in cammies off base would probably be the same as a soldier walking around in a flak and kevlar. It makes as much sense to me to wear cammies off base as it does to you to be prohibited from it.
Jenn - If we start relaxing our professional standards it does affect good order and discipline. Not wearing utilities off base is one of those "That's the way it was, that's the way it is, and that's the way it is going to be." things. There is no reason to change it, we see it as unprofessional and it's pretty much a unanimous decision from all Marines past and present (I'm sure some people disagree but only out of convenience, not principle)